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How to Correctly Use Lists in R?
...that really points out the difference between a list and vector in R:
Why do these two expressions not return the same result?
x = list(1, 2, 3, 4); x2 = list(1:4)
A list can contain any other class as each element. So you can have a list where the first element is a character vector, the second ...
How do I count a JavaScript object's attributes? [duplicate]
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why don't you just do foo.hasOwnProperty(k). Am I missing something? I mean even JavaScript type derives from Object.prototype, and it will have a hasOwnProperty() method.
– bucabay
Aug 28 '...
Segue to another storyboard?
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Yes, but you have to do it programmatically:
// Get the storyboard named secondStoryBoard from the main bundle:
UIStoryboard *secondStoryBoard = [UIStoryboard storyboardWithName:@"secondStoryBoard" bundle:nil];
// Load the initial view controll...
How do I connect to a specific Wi-Fi network in Android programmatically?
.... String should contain ssid in quotes
Then, for WEP network you need to do this:
conf.wepKeys[0] = "\"" + networkPass + "\"";
conf.wepTxKeyIndex = 0;
conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
conf.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
For WPA netw...
How do I replace the *first instance* of a string in .NET?
...ngth);
}
Example:
string str = "The brown brown fox jumps over the lazy dog";
str = ReplaceFirst(str, "brown", "quick");
EDIT: As @itsmatt mentioned, there's also Regex.Replace(String, String, Int32), which can do the same, but is probably more expensive at runtime, since it's utilizing a full...
What is the best way to repeatedly execute a function every x seconds?
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If your program doesn't have a event loop already, use the sched module, which implements a general purpose event scheduler.
import sched, time
s = sched.scheduler(time.time, time.sleep)
def do_something(sc):
print("Doing stuff...")
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What is a software framework? [closed]
Can someone please explain me what a software framework is? Why do we need a framework? What does a framework do to make programming easier?
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When is a C++ destructor called?
Basic Question: when does a program call a class' destructor method in C++? I have been told that it is called whenever an object goes out of scope or is subjected to a delete
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What should my Objective-C singleton look like? [closed]
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Another option is to use the +(void)initialize method. From the documentation:
The runtime sends initialize to each class in a program exactly one time just before the class, or any class that inherits from it, is sent its first message from within the program. (Thus the method may ne...
How do I use Notepad++ (or other) with msysgit?
How do I use Notepad++ (or any other editor besides vim) with msysgit?
11 Answers
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